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ruby--ruby/test/psych/test_object_references.rb
Aaron Patterson c7c2ad5749
[ruby/psych] Introduce Psych.unsafe_load
In future versions of Psych, the `load` method will be mostly the same
as the `safe_load` method.  In other words, the `load` method won't
allow arbitrary object deserialization (which can be used to escalate to
an RCE).  People that need to load *trusted* documents can use the
`unsafe_load` method.

This commit introduces the `unsafe_load` method so that people can
incrementally upgrade.  For example, if they try to upgrade to 4.0.0 and
something breaks, they can downgrade, audit callsites, change to
`safe_load` or `unsafe_load` as required, and then upgrade to 4.0.0
smoothly.

https://github.com/ruby/psych/commit/cb50aa8d3f
2021-05-17 11:20:45 +09:00

76 lines
1.7 KiB
Ruby

# frozen_string_literal: true
require_relative 'helper'
module Psych
class TestObjectReferences < TestCase
def test_range_has_references
assert_reference_trip 1..2
end
def test_module_has_references
assert_reference_trip Psych
end
def test_class_has_references
assert_reference_trip TestObjectReferences
end
def test_rational_has_references
assert_reference_trip Rational('1.2')
end
def test_complex_has_references
assert_reference_trip Complex(1, 2)
end
def test_datetime_has_references
assert_reference_trip DateTime.now
end
def test_struct_has_references
assert_reference_trip Struct.new(:foo).new(1)
end
def assert_reference_trip obj
yml = Psych.dump([obj, obj])
assert_match(/\*-?\d+/, yml)
begin
data = Psych.load yml
rescue Psych::DisallowedClass
data = Psych.unsafe_load yml
end
assert_equal data.first.object_id, data.last.object_id
end
def test_float_references
data = Psych.unsafe_load <<-eoyml
---\s
- &name 1.2
- *name
eoyml
assert_equal data.first, data.last
assert_equal data.first.object_id, data.last.object_id
end
def test_binary_references
data = Psych.unsafe_load <<-eoyml
---
- &name !binary |-
aGVsbG8gd29ybGQh
- *name
eoyml
assert_equal data.first, data.last
assert_equal data.first.object_id, data.last.object_id
end
def test_regexp_references
data = Psych.unsafe_load <<-eoyml
---\s
- &name !ruby/regexp /pattern/i
- *name
eoyml
assert_equal data.first, data.last
assert_equal data.first.object_id, data.last.object_id
end
end
end